package com.example.skycodes.servlet;

import com.example.skycodes.bean.NewsBean;
import com.example.skycodes.dao.NewsDao;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

/**
 * 1.接受post网址/newsAdd.jsp
 * 2.接受到到传递过来的新闻参数 新闻标题 新闻内容
 * 3.完成新闻的添加
 * 4.跳转到其他网页
 *///
@WebServlet("/newsEdit.jsp")
public class NewsUpdateServlet extends HttpServlet {
    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        req.setCharacterEncoding("UTF-8");
        String user =(String) req.getSession().getAttribute("User");//获取会话
        if (user==null || user.equals("")){
            resp.sendRedirect("login.jsp");//没登录 跳转到登陆页面
            return;
        }
        String newsTitle = req.getParameter("upd_NewsTitle");
        String newsContent = req.getParameter("upd_NewsContent");
        int newsId = Integer.parseInt(req.getParameter("newsId"));
        NewsBean newsBean = new NewsBean(); //实例化新闻对象
        newsBean.setNewsID(newsId);
        newsBean.setNewsTitle(newsTitle);//设置新闻标题
        newsBean.setNewsContent(newsContent); //设置新闻内容
        newsBean.setAdminName("admin");// todo  登陆管理员
        NewsDao newsDao = new NewsDao();//实例化 新闻DAO
        int result = newsDao.update(newsBean);//调用添加方法 传递新闻对象
        if (result > 0) {
            resp.sendRedirect("news.jsp");
        } else {

            req.setAttribute("msg", "更新失败");
            req.setAttribute("url", "news.jsp");
            //使用网址跳转 请求结果对象
            resp.sendRedirect("news.jsp");
        }

    }
}
